Thanks, Erick. Its just when we enable both index=true and docValues=true,
it increases the index time by 2x atleast for full re-index.
On Wed, May 20, 2020 at 2:30 PM Erick Erickson
wrote:
> Revas:
>
> Facet queries are just queries that are constrained by the total result
> set of your
>
Revas:
Facet queries are just queries that are constrained by the total result set of
your
primary query, so the answer to that would be the same as speeding up regular
queries. As far as range facets are concerned, I believe they _do_ use
docValues,
after all they have to answer the exact same
Eric,
Thanks for that explanation. I have a follow up question on that. I find
the scenario of stored=true and docValues=true to be tricky at times...
would like to know when is each of these scenarios preferred over the other
two for primitive datatypes:
1) stored=true and docValues=false
2)
Erick, Can you also explain how to optimize facet query and range facets as
they dont use docValues and contribute to higher response time?
On Tue, May 19, 2020 at 5:55 PM Erick Erickson
wrote:
> They are _absolutely_ able to be used together. Background:
>
> “In the bad old days”, there was no
They are _absolutely_ able to be used together. Background:
“In the bad old days”, there was no docValues. So whenever you needed
to facet/sort/group/use function queries Solr (well, Lucene) had to take
the inverted structure resulting from “index=true” and “uninvert” it on the
Java heap.
You can index AND docvalue? For some reason I thought they were exclusive
On Tue, May 19, 2020 at 5:36 PM Erick Erickson wrote:
>
> Yes. You should also index them….
>
> Here’s the way I think of it.
>
> For questions “For term X, which docs contain that value?” means index=true.
> This is a
Yes. You should also index them….
Here’s the way I think of it.
For questions “For term X, which docs contain that value?” means index=true.
This is a search.
For questions “Does doc X have value Y in field Z”, means docValues=true.
what’s the difference? Well, the first one is to get the
I have quite a few numeric / meta-data type fields in my schema and
pretty much only use them in fq=, sort=, and friends. Should I always
use DocValue on these if i never plan to q=search: on them? Are there
any drawbacks?
Thanks,
Matt
